feat(marketing): user profile update, ad placement management, logo limits

- Add PUT /auth/profile endpoint for nickname and avatar updates
- Add ad_placements table and CRUD admin API for managing ad units
- Add GET /marketing/ad-config public API for mini-program to fetch ad config
- Reduce logo limit from 10 to 3 per user, add 2MB file size validation

Made-with: Cursor

internal/routes/admin_routes.go

@@ -13,6 +13,7 @@ func registerAdminRoutes(
 	categoryHandler *marketinghandler.CategoryHandler,
 	templateHandler *marketinghandler.TemplateHandler,
 	downloadHandler *marketinghandler.DownloadHandler,
+	adPlacementHandler *marketinghandler.AdPlacementHandler,
 ) {
 	if handler == nil {
 		return
@@ -107,11 +108,21 @@ func registerAdminRoutes(
 					marketing.PUT("/templates/:id", templateHandler.AdminUpdate)
 					marketing.DELETE("/templates/:id", templateHandler.AdminDelete)
 
-					marketing.GET("/stats", downloadHandler.AdminStats)
-					marketing.POST("/upload/oss/token", downloadHandler.AdminUploadToken)
+				marketing.GET("/stats", downloadHandler.AdminStats)
+				marketing.POST("/upload/oss/token", downloadHandler.AdminUploadToken)
 				marketing.POST("/upload", downloadHandler.AdminUploadFile)
+			}
+
+			if adPlacementHandler != nil {
+				ads := protected.Group("/marketing/ad-placements")
+				{
+					ads.GET("", adPlacementHandler.AdminList)
+					ads.POST("", adPlacementHandler.AdminCreate)
+					ads.PUT("/:id", adPlacementHandler.AdminUpdate)
+					ads.DELETE("/:id", adPlacementHandler.AdminDelete)
 				}
 			}
 		}
 	}
 }
+}

internal/routes/marketing_routes.go

@@ -14,6 +14,7 @@ func registerMarketingRoutes(
 	templateHandler *marketinghandler.TemplateHandler,
 	downloadHandler *marketinghandler.DownloadHandler,
 	userLogoHandler *marketinghandler.UserLogoHandler,
+	adPlacementHandler *marketinghandler.AdPlacementHandler,
 ) {
 	if categoryHandler == nil || templateHandler == nil || downloadHandler == nil {
 		return
@@ -24,6 +25,10 @@ func registerMarketingRoutes(
 		marketing.GET("/categories", categoryHandler.ListEnabled)
 		marketing.GET("/templates", templateHandler.ListEnabled)
 		marketing.GET("/templates/:id", templateHandler.GetDetail)
+
+		if adPlacementHandler != nil {
+			marketing.GET("/ad-config", adPlacementHandler.GetAdConfig)
+		}
 	}
 
 	protectedMarketing := protected.Group("/marketing")

internal/routes/routes.go

@@ -40,6 +40,7 @@ func Register(
 	marketingTemplateHandler *marketinghandler.TemplateHandler,
 	marketingDownloadHandler *marketinghandler.DownloadHandler,
 	marketingUserLogoHandler *marketinghandler.UserLogoHandler,
+	marketingAdPlacementHandler *marketinghandler.AdPlacementHandler,
 	quitCheckinHandler *quitcheckinhandler.Handler,
 ) {
 	// Register 用来集中注册所有 HTTP 路由，便于工程结构更清晰：
@@ -65,13 +66,14 @@ func Register(
 		protected.Use(middleware.AuthMiddleware(db, sessionCache))
 		protected.Use(middleware.RequireUserMiddleware())
 		{
+			protected.PUT("/auth/profile", authHandler.UpdateProfile)
 			registerCommonRoutes(protected, uploadHandler)
 			registerRemoveWatermarkRoutes(api, protected, videoHandler)
 			registerMembershipRoutes(protected, redeemCodeHandler)
 			registerSmokeRoutes(protected, smokeHandler, quitPlanHandler)
 		}
 
-		registerMarketingRoutes(api, protected, adminToken, marketingCategoryHandler, marketingTemplateHandler, marketingDownloadHandler, marketingUserLogoHandler)
+		registerMarketingRoutes(api, protected, adminToken, marketingCategoryHandler, marketingTemplateHandler, marketingDownloadHandler, marketingUserLogoHandler, marketingAdPlacementHandler)
 	}
 
 	apiV2 := router.Group("/api/v2")
@@ -84,7 +86,7 @@ func Register(
 		}
 	}
 
-	registerAdminRoutes(router, adminHandler, marketingCategoryHandler, marketingTemplateHandler, marketingDownloadHandler)
+	registerAdminRoutes(router, adminHandler, marketingCategoryHandler, marketingTemplateHandler, marketingDownloadHandler, marketingAdPlacementHandler)
 
 	// 保质期提醒模块使用独立前缀 /api/expiry，与现有 /api/v1 并存。
 	expiryAPI := router.Group("/api/expiry")